提交记录 47245 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
heffo_hard	1000i. 【传统题】 A+B Problem	Compile Error	0	0 ns	0 KB	C++17	147 B

提交时间	评测时间
2026-08-21 23:20:12	2026-08-21 23:20:13

代码

#include <iostream>
int n,a,b;
int main() {
    cin>>n;
	for (int i = 1; i <= n; i++) {
        cin>>a>>b;
        cout<<a+b<<endl;
	}
	return 0;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp: In function ‘int main()’:
jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:4:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
    4 |     cin>>n;
      |     ^~~
      |     std::cin
In file included from jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
   60 |   extern istream cin;  /// Linked to standard input
      |                  ^~~
jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:7:9: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
    7 |         cout<<a+b<<endl;
      |         ^~~~
      |         std::cout
In file included from jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
   61 |   extern ostream cout;  /// Linked to standard output
      |                  ^~~~
jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:7:20: error: ‘endl’ was not declared in this scope; did you mean ‘std::endl’?
    7 |         cout<<a+b<<endl;
      |                    ^~~~
      |                    std::endl
In file included from /usr/include/c++/9/iostream:39,
                 from jp_data/tasks/cd9d81009d7311f1aa5f39b1dd43d4ae/contestant.cpp:1:
/usr/include/c++/9/ostream:599:5: note: ‘std::endl’ declared here
  599 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~